Roger Federer looks to London for redemption

Former world No. 1 Roger Federer has won a record six ATP World Tour Finals titles.

Story highlights

Roger Federer qualifies for the ATP World Tour Finals in London

Federer booked his spot with a win over Kevin Anderson in Paris

The Swiss has won the season-ending tournament on a record six occasions

Swiss Stanislas Wawrinka and Frenchman Richard Gasquet complete the field

Roger Federer has endured a 2013 which has seen him slip out of the world's top four for the first time in a decade.

But the 17-time grand slam champion will have a chance to end his season on a high after qualifying for the ATP World Tour Finals in London, a city where he has enjoyed a multitude of triumphs.

The Swiss maestro has won a record equaling seven singles titles at Wimbledon, staged in the British capital, while he has also won the season-ending championships twice since it was moved to London's O2 Arena in 2009.

A second round win over South Africa's Kevin Anderson at the Paris Masters ensured current world No. 7 Federer would line up at the showpiece World Tour Finals, which he has won on a record six occasions.

'Wozilroy' split – It's official -- double major winner Rory McIlroy and former world No. 1 Caroline Wozniacki are no more. McIlroy says he realized he wasn't ready for marriage when their wedding invitations were mailed out. When it comes to sport, the path of true love rarely runs smooth and in this gallery, CNN looks at sporting couples who have aced their relationships and those who have seen their private lives hit the rough.

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Courting romance: Ups and downs of tennis love affairs10 photos

Wimbledon winners – American lovebirds Jimmy Connors and Chris Evert won both singles titles at Wimbledon in 1974 and were engaged, but by the time the grass-court grand slam came around in 1975 the wedding was off. Decades after splitting from the eight-time grand slam champion, Evert swapped the tennis court for the golf course...

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Courting romance: Ups and downs of tennis love affairs10 photos

Hooking a 'great white' – After the break up of her marriage to British tennis player John Lloyd in 1987 and a divorce from Olympic skier Andy Mill in 2006, Evert tied the knot with Australian golf star Greg Norman. But it would not be a case of third time lucky for Evert as the pair separated in 2009 after 18-months.

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Courting romance: Ups and downs of tennis love affairs10 photos

Dip in form – Adam Scott followed in the footsteps of his hero Norman by sparking a golf and tennis romance of his own in 2010 with Serbia's Ana Ivanovic. The pair split after both saw their form suffer, before unsuccessfully reuniting in 2011. Scott captured the first major title of his career at the Masters in 2013.

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Courting romance: Ups and downs of tennis love affairs10 photos

'Aussie Kim' – When Australian Lleyton Hewitt began a romance with fellow tennis ace Kim Clijsters in 2000, the former world No. 1's country took the Belgian to their hearts. She was dubbed "Aussie Kim" and it looked like they were set to live happily ever after when a wedding was scheduled. The pair split in October 2004, but Clijsters would still find her happy ending...

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Courting romance: Ups and downs of tennis love affairs10 photos

Life with Brian – Now retired, Clijsters is happily married to former American basketball player Brian Lynch, with whom she has two children.

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Courting romance: Ups and downs of tennis love affairs10 photos

Sasha split – Like Clijsters, Maria Sharapova found love on the basketball court. The four-time grand slam winner got engaged to former Los Angeles Lakers star Sasha Vujacic, before ending her relationship with the Slovenian in 2012. She is now dating fellow tennis star Grigor Dimitrov.

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Courting romance: Ups and downs of tennis love affairs10 photos

Stepanek separation – Radek Stepanek of the Czech Republic knows more than most about the trials and tribulations of a tennis fling. He was engaged to marry former world No. 1 Martina Hingis before the two called off their nuptials in 2007.

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Courting romance: Ups and downs of tennis love affairs10 photos

Double fault – Undeterred, Stepanek started a second tennis fling with compatriot Nicole Vaidisova and the couple married in June 2010, but subsequently announced they had filed for divorce. Stepanek has since dated 2011 Wimbledon champion Petra Kvitova but they split in April.

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Courting romance: Ups and downs of tennis love affairs10 photos

The perfect match? – Tennis super stars Andre Agassi and Steffi Graf are living proof that sporting couples can go the distance. The former world No. 1s married in 2001 and have two children together.

Wawrinka ready for singles success

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"[It's] the absolute pinnacle of our sport," Federer, who will equal Ivan Lendl's record of 12 consecutive Tour Finals appearances, told the ATP website before booking his place in London.

"You want to be able to showcase your talents against the best, with the biggest rivalries, in one of the coolest arenas in the world in front of amazing fans.

"For me it's always been an honor to play there and I look forward to returning this year."

The news of Federer's qualification will delight his British fans, who have grown accustomed to seeing him dominate the grass courts of the All England Club and the electric blue surface at the O2 Arena.